One of my pet peeves about the old system was that there was very little differentiation between the color of visited links and unvisited links.

On the new system, there's no differentiation whatsoever.

Any chance of changing that?

se

Yes. It was nice to do a quick scan of the list of headers to find ones you were interested in before by indicating previouly visited links. If previously visited links cannot be made to appear in another color, is there some kind of setting that would serve a similar purpose?